Apparatus for cooling and preserving milk.



J. L .'rmmsToN.4 APPARATUS POR COOLING AND PRESERVING MILK.

APPLIUATIO FILED DEO. 5. 1908.

Patented Apr. 20, 1909.

nu: Norms Prrrll co., imsmnpwn. l. e.

J. E. JOHNSTON. .l APPARATUS FOB.' COOLING AND PRBSERVING MILK.

v APPLIUATION FILED DEG. 5. 1908. 918,862.

Patented Apr. 20, 1909.

2 SHEETS-SHEET 2.

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@mi h1 una JAMES E. JOHNSTON, OF OBERLIN, OHIO.

APPARATUS FOR COOLING AND PRESERVING MILK.

Specification of Letters Patent.

Application filed December 5, 1908.

Patented April 20, 1909.

Serial No. 466,145.

To all whom it 'may concern:

Be it known that I, JAMES E. JOHNSTON, a citizen of the United States, residing at Oberlin, in the county of Lorain and State of Ohio, have invented a new and useful Apparatus for Cooling and Preserving Milk, of which the following is a specification.

This invention relates to apparatus for cooling milk and for maintaining it at a low temperature while being placed in delivering receptacles and also while contained Within said receptacles.

One of the objects of the invention is to provide a receptacle-filling device constituting aerating, cooling and straining means and designed to be used in connection with delivering receptacles, said device being so constructed as to be readily positioned upon the delivering receptacles and capable of directing milk and a cooling liquid, such as ice-water, simultaneously into the proper compartments within the delivering` receptacles.

Another object is to provide a delivering receptacle having a water-jacket and an interior cooling member having an outlet opening into the jacket.

W ith these and other objects in view the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims. i In the accompanying drawings the preferred form of the invention has been shown. lfn said drawings z-Figure 1 is a central vertical section through the complete apparatus. Fig. 2 is a vertical section through the delivering receptacle with its closure in position thereon. Fig. 3 is a plan view of the delivering receptacle with the closure removed. Fig. 4 is a plan view of the filling device. 4

Referring to the figuresby characters of reference, 1 designates the outer casing or jacket of the delivering'receptacle, said Aj acket being slightly tapered toward its lower end and having spacing blocks 2 upon the bottom thereof, which support the interior casingor receptacle 3. Said interior receptacle is preferably cylindrical in form,so that an annular compartment 4 is formedbetween the two oasings 1 and 3, said compartment gradually diminishing in thickness toward its lower end and opening into the space between the bottoms of the two casings, said space being proj vided with avalved ou tlet 5. This outlet constitutes a drain for the liquid contents of the compartment 4. The inner casing 3 does not extend the full height of the outer casing or jacket 1, but terminates a short distance below the upper edge thereof. A faucet 6 may be connected to the lower portion of the casing 3, and extends through the outer casing or jacket 1, said faucet constituting means whereby the contents of the inner receptacle can be readily drawn. An overiiow opening 7 is preferably formed within the jacket 1 at a point below the upper edge of the inner casing 3 and suitable handles 8 may be formed upon the outer face of the outer acket 1 for the purpose of facilitating they manipulation of the receptacle. Handles 9 are also formed upon the inner face of the inner casing 3 adj acent the upper edge thereof, so that said casing can be readily removed from the jacket 1 after the faucet 6 has been disengaged therefrom. This faucet is preferably attached to the inner casing 3 by screwing it thereinto in the ordinary manner, and is not used unless the receptacle is employed for peddling milk. j Detachably mounted within the upper portion of the inner casing 3 is a receptacle 10, preferably in the form of an inverted cone frustum, and having a substantially conical top portion 11 formed at its apex with an inlet 12 surrounded by a thimble 13, designed to be engaged by a cap 14. An inclined iiange 15 extends upwardly from the periphery of the receptacle 10, and is provided close to the top 11 of said receptacle with a series of apertures 16 constituting outlets for liquid which may be deposited upon the top V11. An outstanding rim 17 is formed upon the upper edge of the flange 15 and is designed to rest upon the upper edge of the inner casing 3, so as to support the receptacle 10 within said casing. An outlet spout 18 extends from the top 11 and is designed to lap the upper edge of the inner casing 3, so that any overiiow from the receptacle 10 will be directedinto the compartment 4. A handle 19 is located upon the top 11 so as to permit the receptacle 10 to be tilted whenever desired, for the purpose of causing the liquid contents thereof to flow through the spout 1 8 and into the compartment 4. Y

As shown in Fig. 2, the delivering receptacle in ay be provided with a cover 20, having a flange 21 designed to iit snugly around the outer casing or jacket l, there being a handle 22 upon the cover, and whereby it can be conveniently manipulated.

The device hereinbeiore described is particularly designed for use in conveying or peddling niilk, and, by filling the receptacle 10 with ice or cold water and the coinpartnient 4 with cold water, the niilk contained Within the inner casing 3 can be kept cool 'for a long time. As the ice within the receptacle 1() i'nelts' the said receptacle can be tilted so as to direct the water therefroin and through the spout 18 into the compartment 4. The rnilk may be drawn from the inner receptacle through the faucet 6, and, when it is desired to reinove the water 'from coinpartnient 4, it is merely necessary to open the valved outlet 5.

In order to iill the receptacle herein described it is deenied desirable to use a feed device oif special construction, and which has been shown in Fig. 1 in connection with the delivering receptacle hereinbe'fore described. This device consists preferably of an enter casing 23 Within which is located an inverted frusto-conical receptacle 24, the bottoni, 25, of which is provided with a nuniber of apertures and projects through the bottoni of the casing 23. A scren7 threaded stein 26 erf-:tends upwardly froin the bottoin. 25 and slidably inounted thereon is a spring 27 designed to support a ibrous filtering inat lrial 2S forined of raw cotton or the like, said inaterial being held iirinly upon the spring 27 by means of a perforated 'follower 29. A nut 30 is inounted on the stein 26 and is provided with an elongated inger-piece 31 extending to the top of the receptacle 24 whereby the nut 30 can be rotated without the necessity of inserting` the ngers of the user into the liquid contents ot' said receptacle. By turning the nut 30 the filtering inaterial 23 can be compressed more or less upon the spring 27.

Outlet tubes 32 extend downwardly Vfrom the bottoni of the outer casing 23, and the distance between these tubes is such that when the feed device is placed upon the top of the delivering receptacle as shown in Fig. l, they, the tubes, will project into the upper portion of the conipartnient 4. he tubes are norinally closed at their upper ends by ineans of plugs 33 carried by the lower por tions of rods 34 which are slidably inounted in suitable guides 35 carried by the upper portion of the receptacle 24. Each rod 34 has a head 36 whereby it can be conveniently grasped and elevated for the purpose of removing the plug 33 from the tube 32 thereunder, thus permitting the contents ot the outer casing 23 to iow through vthe tube and into the cornpartinent 4 thereunder.

The i'illing device is designed to be used at the dairy or wherever the delivering receptacles are to be filled. Said device is placed upon the delivering receptacle after the cover 2O has been removed, and the tubes 32 will therefore project into the compartment 4, although normally closed at their upper ends by the plugs 33. The space within the. casing 23 and surrounding the inner receptacle 24 is filled with cold water after which the inilk to be strained and supplied to the delivering receptacle is placed within the inner receptacle 24. The milk will ilter slowly through the material 2S and will fall onto the conical top 11 of the ice rei-,optimale 1.0, thus becoming thoroughly aerated. r[he inilk will tlow downwardly on to this top and escape through the openings 16 into the receptacle 3, this filling operation obviousljv quickly cooling the milk. After the receptacle 3 has been iilled, or, during the tilting operation, the plugs 33 are raised from their seats so as to perinit the water contained. within the casing 23 to lion` dow11\\'ard.l v through the tubes 32 and into the eonipartnient 4. After the delivering receptacle has been tilled the cover 2O may be plaeed thereon and the inilk contained within the receptacle will thus be inai'ntaintal at a low teniperature for a considerable period. Whenever desired the operator or user can tilt the receptacle it) for the purpose of directing the ice-water from said receptxwle and through the spout iS to the compartinent 4. Natel can be drawn froin the conipartinent 4 through the valved outlet 5 whenever desired. By providing the spring support 27 for the iiltering material 23 said material will not clog the openings in the. bottoni 25, and, by adjusting the nnt 3l) the filtering material can be more or less cmnpressed, so as to increase or diminish the filtering action thereof.

As shown in Fig. 2, the receptmzle, when used for peddling, can be provided with an agitator 37 of any suitablel construction and provided with a stein. 3 extending close to the top of the jacket 1, said agitator being utilized for the purpose of thoroughly mixing the rnilk and creain. before drawing the same from the inner receptacle 3 through the faucet 6.

Obviously, various changes may be made in the construction and arrangement ol' the parts without departing from the spirit or sacriticing the a tvantages` of the invention.

1What is claimed is l. in a device of the class described a receptacle, a cornbined feeding and viiltering device rnounted thereon, a refrigerant holder within the upper portion of the receptacley and in the path of liquid discharged from the feeding device, said refrigerant holding device having a conical top, and a supliorting fiange extending from said top and detachably engaging the upper end of the receptacle, said flange having an outlet opening therein at its base.

2. A device of the class described coni- .l (it) prising a receptacle, a jacket surrounding the same and lforming av cooling cinpartment around said receptacle, means for supporting a refrigerant Within the upper portion of the receptacle, said means opening into the cooling compartment, a feeding device mounted above the receptacle and disposed to direct liquid to be cooled on to the refrigerant-holding means and into the receptacle, and means for directing a cooling liquid from said feeding device and into the coolingl compartment.

3. In a device of the class described a receptacle, a jacket surrounding the same and lforming a coolingl compartment around the receptacle, refrigerant-holding means detachably mounted Within the upper end of the receptacle and having an inclined top, and means for conveying liquid from said holding means to the cooling compartment.

4. In a device of the class described a receptacle, a jacket surrounding the same and forming a cooling compartment extending around the receptacle, a refrigerant-holding device Within the upper portion of the receptacle and having a conical top, Va supporting flange extending from said device and de-` tachably engaging the receptacle, said Harige having outlet o enings therein, and a spout for conveying iquid from the refrigerantholding means to the cooling compartment.

5. In a device of the class described a delivering receptacle comprising inner and outer casings forming a receiving compartment and a cooling compartment, a receptacle detachably and tiltably mounted within the upper portion of the receiving compartment and supported by the inner casing, said receptacle having an inclined top, a supporting iiange upon the receptacle and engagingthe inner easing, said flange having outlet apertures therein, and means for directing liquid contents of the receptacle into the cooling compartment.

6. In a device of the class described a delivering receptacle comprising inner and outer casings forming a receiving compartment and a cooling compartment, a refrigerant -holding receptacle detachably and tiltably mounted Within the upper portion of the receiving compartment, and means for conveying liquid contents of said receptacle to the cooling compartment when the receptacle is tilte ing member comprising inner and vouter casings, said inner casing having an apertured bottom, a yieldingly supported filtering material upon the bottom portion of the inner casing, adjustable means for compressing the filtering material.

8. In a device of the class described a combined filtering and feeding member comprising inner and outer casings forming concentric compartments, outlet tubes extending from the bottom of the outer compartment, means for controlling the discharge of liquid through said tubes, and a filter Within the bottom portion of the inner compartment, said inner compartment having an apertured bottom.

9. In a device of the class described a feeding member comprising inner and outer casings, said inner casing having an apertured bottom, yieldingly supported filtering material disposed upon said bottom, adjustable means for compressing said material, and valve-controlled means for regulating the discharge of liquid from the outer casing.

l0. Ina device of the class described a receptacle, a jacket surrounding the saine and forming a cooling compartment extending around the receptacle, a refrigerant-supporting device within the receptacle and constituting spreading means, a filtering device for directing liquid on to the spreading means and into the receptacle, and valve-controlled means for directing a cooling liquid into the cooling compartment. i

11. In a device of the class described a receptacle, a jacket surrounding the same and forming a cooling compartment, a refrigerant holding device Within the upper portion of the receptacle and a supporting fiange extending upwardly from said device and detachably engaging the receptacle, said iiange having outlet openings therein close to the top of the device.

l2. In a device of the class described a receptacle, a refrigerant holding device within -the upper portion of the receptacle, and a supporting flange extending upwardly from said device and detachably engaging the top of the receptacle, said flange having outlet openings therein.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two Witnesses.

j JAMES E. JOHNSTON. Witnesses:

CHARLES A. HAMMOND, G. H. CARTER. 

